Delay detection device and detection method of delay detection device

Abstract

The invention provides a delay detection device and a detection method of the delay detection device. The delay detection device and the detection method are based on automatic transmitting and automatic receiving. The detection method includes the steps that a starting module receives external control to trigger spread spectrum transmitting signals, a set of signals coded in a spread spectrum mode through pseudo-random codes are generated, and a timing mark is generated; signals generated in the mode that the spread spectrum signals are coupled through a radio-frequency channel module are transmitted to an A/D conversion circuit, A/D conversion is carried out on the signals through the A/D conversion circuit, then the signals are transmitted to a digital correlator, and the digital correlator completes signal capturing and generates a correlation peak; time between the starting mark and the correlation peak is calculated in real time through a calculating circuit, and delay of the signals flowing through the modules is calculated. The delay detection device and the detection method can be widely applied to systems, such as a burst communication system, with delay estimation, delay detection has the advantages of being automatic, adaptive and the like, the batch assembling performance and the use performance of products are accordingly improved, and the delay detection device and the detection method are particularly suitable for the batch-assembling products.

Description

technical field [0001] The invention relates to a delay detection device and a detection method thereof, in particular to a delay detection device and a detection method suitable for parameter self-inspection in burst communication and signal processing. Background technique [0002] In burst communication systems such as secondary radar, more and more products need to accurately detect the time delay flowing through the channel. Obtaining these high-precision delay times can be used for phase compensation, distance calculation and channel module standardization. Calibration to enhance product detection, positioning and maintenance functions. [0003] Due to its sharp correlation peak characteristics, the spread spectrum signal can accurately measure the phase of the chip flowing through it, and is often used as a calibration baseline for high-precision measurement. [0004] The secondary radar includes an interrogator and a transponder, and each product is composed of a ra...

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Problems solved by technology

Through the method of experience value, not only there is a lot of debugging work to be done, but also the fixed value is difficult to adapt to different environments and different sta

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